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| 1 | Review of low timing jitter mode-locked fiber lasers and applications in dual-comb absolute distance measurement显示文摘Passively mode-locked fiber lasers emit femtosecond pulse trains with excellent short-term stability. The quantum-limited timing jitter of a free running femtosecond erbium-doped fiber laser working at room temperature is considerably below one femtosecond at high Fourier frequency. The ultrashort pulse train with ultralow timing jitter enables absolute time-of-flight measurements based on a dual-comb implementation, which is typically composed of a pair of optical frequency combs generated by femtosecond lasers. Dead-zone-free absolute distance measurement with sub-micrometer precision and kHz update rate has been routinely achieved with a dual-comb configuration, which is promising for a number of precision manufacturing applications, from large step-structure measurements prevalent in microelectronic profilometry to three coordinate measurements in large-scale aerospace manufacturing and shipbuilding. In this paper, we first review the sub-femtosecond precision timing jitter characterization methods and approaches for ultralow timing jitter mode-locked fiber laser design. Then, we provide an overview of the state-of-the-art dual-comb absolute ranging technology in terms of working principles, experimental implementations, and measurement precisions. Finally, we discuss the impact of quantum-limited timing jitter on the dual-comb ranging precision at a high update rate. The route to highprecision dual-comb range finder design based on ultralow jitter femtosecond fiber lasers is proposed. | Haosen Shi Youjian Song Runmin Li Yuepeng Li Hui Cao Haochen Tian Bowen Liu Lu Chai Minglie Hu | 2018 | Nanotechnology and Precision Engineering2018，1，4： | 9 |
| 2 | Discovery and Geological Significance of an Indosinian(ca.244 Ma)Metamorphic Event in the Langshan Area,Western Inner Mongolia,China:New Evidence from Zircon LA-ICP-MS U-Pb Dating显示文摘The Langshan Group is an important constituent of the Precambrian metamorphic rocks in the Langshan area.The accurate determination of its metamorphic age is of great scientific significance for the further study of the Precambrian geological evolution in the region.Disputes remain regarding the metamorphism and deformation overprinting of the Langshan Group.This paper presents a detailed study comprising a field geological investigation,petrological observations,and zircon U-Pb aging of garnet-bearing mica quartz schists in the BangBang District.The result of detrital zircon U-Pb dating from the metamorphosed volcanic sedimentary rock series and geological investigation of the garnet-bearing mica quartz schists suggest the strata formed in the Neoproterozoic.The results from cathodoluminescence(CL)image analysis and U-Pb dating of zircons indicate a large number of metamorphic zircons exist in the garnet-bearing mica quartz schists.The metamorphic overgrowth rims of zircon from two samples were analyzed by LA-ICP-MS.The ^(206)Pb/^(238)U weighted average age of ca.244 Ma of the zircon metamorphism rims represents the timing of Indosinian greenschist-amphibolite facies metamorphism in the Langshan area,which may be in response to the collision-type orogeny of the North China and Siberian plates in the Late Paleozoic.Acid-intermediate magmatic intrusive activities occurred in the Langshan area,and metamorphic events developed at the same time or at a later stage during the closure of the Paleo-Asian Ocean. | Yan Yan Runmin Peng Siyu Chen Shuangfei Li | 2022 | Journal of Earth Science2022，33，4： | 1 |
| 3 | Cancer Cell:我国科学家有望开发出治疗急性髓性白血病的新疗法显示文摘近日,刊登在国际杂志Cancer Cell上的一项研究报告中,来自上海交通大学医学院等机构的研究人员通过研究发现了治疗急性髓性白血病(AML)的新型治疗靶点和新型疗法,急性髓性白血病是一种血液骨髓癌症,通常需要及时且积极的疗法对这种癌症进行治疗。 | Chen, Wen-Lian Wang, Yue-Ying Zhao, Aihua Xia, Li Xie, Guoxiang Su, Mingming Zhao, Linjing Liu, Jiajian Qu, Chun Wei, Runmin Rajani, Cynthia Ni, Yan Cheng, Zhen Chen, Zhu Chen, Sai-Juan Jia, Wei | 2017 | 现代生物医学进展2017，17，6： | 0 |
| 4 | SLC2A5介导的果糖利用增强是急性髓系白血病的独特代谢特征并具有潜在治疗价值显示文摘快速增殖的白血病前体细胞需消耗大量的葡萄糖,这会导致骨髓中葡萄糖不足。为对抗葡萄糖不足,急性髓系白血病(AML)细胞可上调果糖转运子GLUT5表达而利用果糖。 | wen-lian chen yue-ying wang aihua zhao li xia guoxiang xie mingming su linjing zhao jiajian liu chun qu runmin wei cynthia rajani yan ni zhen cheng zhu chen 陈赛娟 贾伟 | 2017 | 科学新闻2017，0，4： | 0 |
| 5 | Reflections on the Safe Supply of Natural Gas in China显示文摘With the increasing globalisation of the natural gas supply,supply interruptions,serious shortages and price hikes may affect or even damage many aspects of a country or region.Nowadays,natural gas has become one of China's main energy sources,and the safety,stability and sustainability of its supply are related to the energy security of our country.The main issues threatening the security of the natural gas supply are as follows:(1)high dependency on foreign countries;(2)weaknesses in domestic natural gas infrastructure;(3)the instability of the international common security system.In the fourth part,from the perspective of both internal and external security,the following countermeasures for strengthening our natural gas supply security system are put forward:(4)accelerate the upgrading of domestic natural gas supply-side capacity and enhance domestic gas supply security;(5)promote the construction of domestic natural gas infrastructure in order to break the bottleneck in domestic gas storage and transportation;(6)promote the capacity building of emergency peak shaving on the domestic natural gas demand side so as to enhance the stable demand-side supply;and 7 deepen energy cooperation in Belt and Road regions in order to plot a'fishbone diagram of the safe supply of natural gas in China'for the stability of the external supply. | He Runmin Li Sensheng Cao Qiang Zhou Juan | 2019 | China Oil & Gas2019，26，5： | 0 |
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